The BiOrb Flow Aquarium from Reef One comes as a DIY box kit. Everything you need is in the box, except for the fish. As a matter of fact, the only thing fishy about it is the fish food inside. The rest is just the nuts and bolts of the aquarium, which is ridiculously easy to put together. You get the ceramic media, the filter cartridge, a 12V transformer, air pump, LED light and the tank. For the record, you can get a 15 or 30 liter tank, depending on how fishy you want your aquarium to be. The small one is ideal for tiny fish or shrimps that will look good as a decorative item on your desk or on a table.